Poop can be a scary subject. Coffee, not so much. Unfortunately for those with Coprophobia though, the two are irrevocably intertwined.

In case you want to avoid a long article about your anus, here’s the short of it: Coffee increases the muscle contractions of the large intestine. This sort of puts your innards into overdrive, bringing the poop show on faster than your body was scheduled.

Now go check it out!

Why Does Coffee Make You Poop? via io9